2 SULFIDES and SULFOSALTS (sulfides, selenides, tellurides; arsenides, antimonides, bismuthides; sulfarsenites, sulfantimonites, sulfbismuthites, etc.)

2.H Sulfosalts of SnS Archetype 2.HF With SnS and PbS archetype structure units 2.HF.20 Vrbaite Tl4Hg3Sb2As8S20Space Group C mcaPoint Group 2/m 2/m 2/m Vrbaite (symbol: Vrb) is an opaque to subtranslucent brittle mineral with chemical formula Tl4Hg3Sb2As8S20 and pyramidal crystals.

It is names after Czech mineralogist Karel Vrba [cs].

It is bluish white with red internal reflections and dark red in translucent thin fragments.

[1][2] Type locality: Allchar deposit, Ržanovo mine [mk], Kavadarci Municipality, North Macedonia.